Our Vision
Building the world’s most advanced hydrofoil platform for the next era of Unmanned Surface Vehicles (USVs)
TRANQUILITY is the maritime carve out from TakeOff Engineering GmbH.
We are a Munich-based, founder-led deep-tech startup combining proven industrial execution and proprietary hydrofoil technology for mission-critical markets.
Dr. Sebastian Muschelknautz
Mechanical Engineer | CEO & Shareholder TRANQUILITY
Julian Muschelknautz
Mechanical Engineer | CTO & Shareholder TRANQUILITY
TRANQUILITY's Hydrofoil Platform Technology
Hydrofoils act like underwater wings, lifting the watercraft by hydrodynamic lift above the water surface to unlock unique value for mission critical advantages in defense, security and surveillance.
The TRANQUILITY Technology was developed with a testcraft on the basis of a conventional 3 seater Yamaha Personal Water Craft (PWC) as a bold-on solution.
Key Features of our Technology:
• One waterjet propulsion for both foil- and hullborne mode
• Combustion engine drive unit in present application, alternative hydrogen power drive
• Class-leading speed in waves
• Automated flight control system, radar sensors and accelerometers
• Collision-avoidance and geofencing for shallow-water operation
• Integrated navigation and imaging system (remote-operation ready)
• Retractable foils with quick foilborne / hullborne switching
Foilborne Mode
Hullborne Mode
The TRANQUILITY USV Craft TQ1
The TQ1 Craft on the left is based on a modified Yamaha Crosswave Personal Water Craft (PWC) with the following features:
- Length: 4.6 m, width: 1.7 m, payload: 300 kg
- Dash speed 100 km/h
- Waves up to 1 m at speed in foilborne mode
- Sea state 5 capable in hullborne mode
- Cost effective due to mass produced base craft
Proven System Architecture on PWC-base:
- Fully submerged, actively controlled hydrofoil system
- Validated through multiple test campaigns
- Performance approaching simulation targets
Mission Ready Profile
Foilborne Mode
High-speed, long-range performance across sea states
Ultra stable craft platform for precision sensor or defense systems
Low Detectability
54 kts dashspeed
Waves up to 1.0 m on foils in platforming mode
No wake in foilborne mode
40 kts cruising speed with a range of 250 nm, 50% energy savings compared to conventional USVs
Larger and longer waves in contouring mode
Waterjet unit out of water – minimal sonar signature
up to 80% energy savings right after takeoff speed compared to conventional USVs
Low radar signature through stealthy hull & deck surface design
Hullborne / Foilborne Switching
Hullborne Mode
maximum range 600 nm
fold-down hydrofoils in hullborne mode act as stabilizers in waves
Low radar signature through stealthy hull & deck surface design
A hydrofoil system that converts mass-produced PWCs into high-performance USVs
USV related Imaging and Navigation Systems
Performance Impeller
Integrated Flight Controller enables stable craft platform in foilborne mode
Rear & Front Strut/Foil Systems with integrated Retraction & Collision Protection Systems
Craft Speed Parameters
TakeOff Speed
High Efficiency Speed
Cruising Speed
Top Speed
CO2 Emission Savings
Dual Use Mission Applications
Defence & Security
Speed | Range | Stealth | Sea-State Stability
Civilian
Rapid Response | Endurance | Environmental Impact
Compact, mothership-deployable TRANQUILITY USVs
• Intelligence, Surveillance & Reconnaissance
• Rapid response & interception support
• Force protection & distributed operations
• Maritime awareness & persistent presence
Manned Personal Water Crafts with Fly-by-Wire control
• Ocean & coastal surveillance
• Offshore inspection, monitoring, & logistics
• Search & Rescue and emergency response
• Coast Guard & border operations
TRANQUILITY Development and Full Scale Testcraft
For our hydrofoil development we are using the Yamaha FX Cruiser SVHO as a testcraft.
Over various phases of development with continuous improvement of the hydrofoil system we are now approaching the optimum performance parameters.
Integrated Engineering & Prototyping Facility near Munich
- Core team covers mechanical, electrical and software engineering
- 100% in-house development with 70% internal fabrication
- Proprietary vacuum watertunnel with open surface for foilsystem validation
Our extensive hydrofoil experience & development work
The Vision
Business Partner
Join us in our fascinating journey towards advanced hydrofoils and partner with us to define the next generation of high-performance USVs and PWCs.
Tranquility
Interested in learning more about our TRANQUILITY Hydrofoil Technology? We would love to connect. Please reach out via email, give us a call, or fill out our contact form below to start the conversation!